Are the inner envelopes gummed

Inner envelopes are not gummed.

Do you have the RSVP envelopes to go with this set?

Here is the link to the matching RSVP Envelopes
https://www.cutcardstock.com/collections/a1-envelopes-4-bar/products/cougar-rsvp-envelopes

Traditional Inner-Outer A7 Envelopes I need 100 of the inner envelopes...is there a way to purchase just the inner envelopes? thank you

We only offer these in packages with both the outer and the inner envelopes.

i AM TRYING TO ADD A RETURN ADDRESS TO THE BACK OF THE ENVELOPE BUT IT WON'T LET ME SIZE IT CORRECTLY. HELP.

In order to resize the address information, you need to use the + (plus)  and  -  (minus) buttons in the editing area. and this should allow your address to get either smaller or bigger.  You can also use the Up and Down Arrows in the TEXT EDITING Pop up that has the  font and color choices.

What material are these envelopes? My calligrapher has suggested envelopes that are made of cotton.

This is paper, we have several cotton options that can be found in our Earth Friendly Options.

If I order these today What is the shipping time to Indiana?

We are located in Indiana, so the transit time should not be long.  But if you need a guaranteed delivery time, we would suggest choosing a FedEx option in the checkout process.  The USPS priority mail should arrive to you rather quickly, but it is hit or miss with the postal system.